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Burglar Alarm
SKU: EKI-2006
This kit uses a simple SCRs trigger circuit to sound an
ear piercing alarm whenever a trigger switch is interrupted
Price: US$8.99 |
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Electronic Bell Action Kit
SKU: MX-510B
•Build your own electricpowered Bell Kit. It’s easy, it’s fun, it’s safe! •Discover how an electric bell is constructed and how it’s made to ring. •Easy-to-read, illustrated operating manual included. •Safe, solderless, exciting, educational and fun. Requires two (2) “AA” batt...
Price: US$10.49 |
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Siren kit
SKU: SM-3
The SM-3 siren exactly duplicates the upward and downward wail of a police siren.
Price: US$9.99 |
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Siren Oscillator
SKU: EKI-2012
Press the button to produce a constant tone from the speaker; great for practicing Morse Code.
Price: US$8.99 |
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Police Siren
SKU: VEL-K2604
Create or imitate sirens of all kinds by adjusting 3 trimmers.
Price: US$16.99 |
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Digital Bird
SKU: K-19
You probably have never heard a bird sing like this before. Fun and easy to build. Speaker included.
Price: US$10.99 |
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Fish Caller
SKU: EKI-2018
This simple kit produces a clicking sound similar to that made by
a dying fish.
Price: US$10.99 |
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Electronic Cricket
SKU: VEL-MK104
Can be used for fun or to simulate a hot summer night. Automatically comes on when it gets dark
Price: US$13.95 |
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